MagnaFlow's HM Grade direct-fit converter replaces the complete passenger bank converter assembly on federal emissions trucks, bolting up at the manifold flange with no cutting or welding. The 50 inch clam-shell body is built from 16 gauge 409 stainless steel tubing with 308 stainless steel MIG welds and OE-sized 410 stainless barbed hangers, and carries a ceramic substrate loaded with extra precious metal so the engine management system stays in closed loop and the check engine light stays off. A single post-converter oxygen sensor port and mandrel bent tubing reproduce the OE flow path and sensor position. Installation hardware is in the box: two flat washers, one Torca AccuSeal clamp, two bolts and two nuts.
Specifications
| Type | Direct-fit catalytic converter (MagnaFlow HM Grade) |
| Position | Right (passenger side), primary converter; one per bank |
| Emissions Compliance | Federal / EPA compliant. Not CARB certified. MagnaFlow states HM Grade converters are not legal for sale or installation in California, Colorado or New York. |
| Body Type | Clam-shell |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless steel MIG welds, 410 stainless steel hangers |
| Substrate | Ceramic |
| Overall Length | 50 in |
| Inlet | Flange |
| Outlet | Pipe connection |
| Oxygen Sensor Ports | 1 (post-converter) |
| Drive Type | 2WD |
| Hardware Included | 2 flat washers, 1 Torca clamp, 2 bolts, 2 nuts |
| Quantity | 1 (sold individually, one side only) |
| Part Number | 23317 |
| Warranty | Limited 5-year construction warranty; limited 25,000-mile emissions warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-1998 | Ford | F-150 | Base |
| 1997-1998 | Ford | F-150 | XL |
| 1997-1998 | Ford | F-150 | XLT |
Shipping
- Orders placed before 3 PM ET typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
